Status of RAAS.

[forget]

Does anyone have the real story on Honeywells' RAAS, Runway Advisory and Alerting System? Which airlines are actually using it? It seems the web-site claims need to be read with a pinch of salt. For example, from Honeywell, "FedEx is installing RAAS across the fleet". Yet, from an AEEC Conference -

FEDEX – We had it and we removed it. We discovered on the airplanes that there was interference in getting clearance messages and getting the on runway message. Until that is resolved, it is not in our aircraft. :confused:

[Flightmech]

When RAAS was first installed on the FedEx fleet there were problems due to the volume (non-adjustable) of the RAAS advisories. It would be louder than those over the VHF, so while you were getting the "approaching runway two seven left" advisory crews were missing the line up and wait or cleared take-off instruction from ATC. Same problems on landing with the "four thousand remaining" etc drowning out the ATC instructions.

I don't think FedEx ever removed it, just deactivated it until Honeywell had sorted the problem, which I think they now have.